<template>
  <div class="book-management">
    <h1>图书管理系统</h1>
    
    <el-button type="primary" @click="showAddDialog">添加图书</el-button>
    
    <el-table :data="books" style="width: 100%" border>
      <el-table-column prop="id" label="ID" width="80"></el-table-column>
      <el-table-column prop="title" label="书名"></el-table-column>
      <el-table-column prop="author" label="作者"></el-table-column>
      <el-table-column prop="copies" label="库存"></el-table-column>
      <el-table-column label="操作" width="180">
        <template slot-scope="scope">
          <el-button
            size="mini"
            type="danger"
            @click="handleDelete(scope.$index, scope.row)">删除</el-button>
        </template>
      </el-table-column>
    </el-table>
    
    <el-dialog title="添加图书" :visible.sync="dialogVisible" width="30%">
      <book-form 
        @submit="handleAddBook"
        @cancel="dialogVisible = false">
      </book-form>
    </el-dialog>
  </div>
</template>

<script>
import BookForm from '../components/BookForm.vue'

const initialBooks = [
  {"id": 1, "title": "Python编程", "author": "John Doe", "copies": 4},
  {"id": 2, "title": "历史的秘密", "author": "Jane Smith", "copies": 3},
  {"id": 3, "title": "宇宙探索", "author": "Emily Brown", "copies": 2},
  {"id": 4, "title": "健康生活", "author": "Mike Johnson", "copies": 5},
  {"id": 5, "title": "数学之美", "author": "Sarah Lee", "copies": 4},
  {"id": 6, "title": "艺术欣赏", "author": "David White", "copies": 3},
  {"id": 7, "title": "编程入门", "author": "Alice Green", "copies": 2},
  {"id": 8, "title": "科幻世界", "author": "Frank Black", "copies": 5},
  {"id": 9, "title": "自然奇观", "author": "Grace Blue", "copies": 4},
  {"id": 10, "title": "音乐之声", "author": "Tom Red", "copies": 3}
]

export default {
  components: {
    BookForm
  },
  data() {
    return {
      books: [...initialBooks],
      dialogVisible: false
    }
  },
  methods: {
    showAddDialog() {
      this.dialogVisible = true
    },
    handleAddBook(newBook) {
      // 生成新ID
      const newId = this.books.length > 0 
        ? Math.max(...this.books.map(book => book.id)) + 1 
        : 1
      
      this.books.push({
        id: newId,
        ...newBook
      })
      
      this.dialogVisible = false
      this.$message.success('图书添加成功！')
    },
    handleDelete(index, row) {
      this.$confirm('确定要删除这本书吗?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(() => {
        this.books.splice(index, 1)
        this.$message({
          type: 'success',
          message: '删除成功!'
        })
      }).catch(() => {
        this.$message({
          type: 'info',
          message: '已取消删除'
        })          
      })
    }
  }
}
</script>

<style scoped>
.book-management {
  max-width: 1200px;
  margin: 0 auto;
}
</style>